MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202647071146 A) filed by Petrochina Company Limited on June 08, 2026, for Catalytic Cracking Composite Catalyst, Preparation Method Therefor, And Use Thereof.
Inventors include Wang, Ruipu; Zhang, Zhongdong; Yu, Qianqian; Meng, Fanfang; Fan, Hongchao; Wang, Yi; Chi, Kebin; Liu, Chaowei; Wang, Jian; and Shi, Dejun.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: The present invention relates to the technical field of cracking catalyst preparation. Disclosed are a catalytic cracking composite catalyst and a preparation method therefor. The composite catalyst comprises catalyst A and catalyst B. The bulk density of catalyst A is 0.7-0.79 g/cm3, the bulk density of catalyst B is 0.81-0.87 g/cm3, and the bulk density ratio of catalyst A to catalyst B is 0.88-0.95. The dry-basis weight ratio of Y-type molecular sieves contained in catalyst A to those contained in catalyst B is 2-4:1. The composite catalyst has good wear resistance performance, achieves a high yield of low-carbon olefins and high propylene selectivity in heavy oil catalytic cracking, and increases the yield of low-carbon olefins without increasing the yield of heavy oil and diesel oil.
Disclaimer: Curated by HT Syndication.
